Effects of external patch configuration on repaired composite laminates subjected to multi-impacts

Detalhes bibliográficos
Autor(a) principal: Coelho, S. R. M.
Data de Publicação: 2017
Outros Autores: Reis, P. N. B., Ferreira, J. A. M., Pereira, A. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/36795
https://doi.org/10.1016/j.compstruct.2017.02.069
Resumo: This work intends to study the impact performance of repaired composites by the overlap patch technique and, for this purpose, experimental tests were carried out on single and double-patch specimens. In order to evaluate the impact fatigue strength, both configurations were submitted to multi-impacts, until the full perforation occurs. It was possible to conclude that the double-patch geometry supports higher maximum loads, lower displacements and promotes higher elastic energies. Relatively to the impact energy of 6 J, for example, the maximum load and the elastic energy is 97.1% and 51.2% higher, respectively, but the maximum displacement is about 50% lower than the values obtained with the single-patch geometry. Higher impact fatigue life was also observed, as consequence of its higher stiffness. The impact bending stiffness confirms the difference of stiffness between them, and shows to be a parameter able to monitor the damage progression.
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spelling Effects of external patch configuration on repaired composite laminates subjected to multi-impactsComposite structureBonded composite repairExternal patch repairImpact testsThis work intends to study the impact performance of repaired composites by the overlap patch technique and, for this purpose, experimental tests were carried out on single and double-patch specimens. In order to evaluate the impact fatigue strength, both configurations were submitted to multi-impacts, until the full perforation occurs. It was possible to conclude that the double-patch geometry supports higher maximum loads, lower displacements and promotes higher elastic energies. Relatively to the impact energy of 6 J, for example, the maximum load and the elastic energy is 97.1% and 51.2% higher, respectively, but the maximum displacement is about 50% lower than the values obtained with the single-patch geometry. Higher impact fatigue life was also observed, as consequence of its higher stiffness. The impact bending stiffness confirms the difference of stiffness between them, and shows to be a parameter able to monitor the damage progression.Elsevier2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/36795http://hdl.handle.net/10316/36795https://doi.org/10.1016/j.compstruct.2017.02.069https://doi.org/10.1016/j.compstruct.2017.02.069eng0263-8223http://www.sciencedirect.com/science/journal/02638223Coelho, S. R. M.Reis, P. N. B.Ferreira, J. A. M.Pereira, A. M.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2021-08-27T09:16:35Zoai:estudogeral.uc.pt:10316/36795Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:57:55.749385Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Effects of external patch configuration on repaired composite laminates subjected to multi-impacts
title Effects of external patch configuration on repaired composite laminates subjected to multi-impacts
spellingShingle Effects of external patch configuration on repaired composite laminates subjected to multi-impacts
Coelho, S. R. M.
Composite structure
Bonded composite repair
External patch repair
Impact tests
title_short Effects of external patch configuration on repaired composite laminates subjected to multi-impacts
title_full Effects of external patch configuration on repaired composite laminates subjected to multi-impacts
title_fullStr Effects of external patch configuration on repaired composite laminates subjected to multi-impacts
title_full_unstemmed Effects of external patch configuration on repaired composite laminates subjected to multi-impacts
title_sort Effects of external patch configuration on repaired composite laminates subjected to multi-impacts
author Coelho, S. R. M.
author_facet Coelho, S. R. M.
Reis, P. N. B.
Ferreira, J. A. M.
Pereira, A. M.
author_role author
author2 Reis, P. N. B.
Ferreira, J. A. M.
Pereira, A. M.
author2_role author
author
author
dc.contributor.author.fl_str_mv Coelho, S. R. M.
Reis, P. N. B.
Ferreira, J. A. M.
Pereira, A. M.
dc.subject.por.fl_str_mv Composite structure
Bonded composite repair
External patch repair
Impact tests
topic Composite structure
Bonded composite repair
External patch repair
Impact tests
description This work intends to study the impact performance of repaired composites by the overlap patch technique and, for this purpose, experimental tests were carried out on single and double-patch specimens. In order to evaluate the impact fatigue strength, both configurations were submitted to multi-impacts, until the full perforation occurs. It was possible to conclude that the double-patch geometry supports higher maximum loads, lower displacements and promotes higher elastic energies. Relatively to the impact energy of 6 J, for example, the maximum load and the elastic energy is 97.1% and 51.2% higher, respectively, but the maximum displacement is about 50% lower than the values obtained with the single-patch geometry. Higher impact fatigue life was also observed, as consequence of its higher stiffness. The impact bending stiffness confirms the difference of stiffness between them, and shows to be a parameter able to monitor the damage progression.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/36795
http://hdl.handle.net/10316/36795
https://doi.org/10.1016/j.compstruct.2017.02.069
https://doi.org/10.1016/j.compstruct.2017.02.069
url http://hdl.handle.net/10316/36795
https://doi.org/10.1016/j.compstruct.2017.02.069
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0263-8223
http://www.sciencedirect.com/science/journal/02638223
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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